Diffraction grating

Resource Description

Title slide plus thirteen slides.
Slides covering:
Comparison of patterns produced by increasing number of slits
Examples of diffraction gratings (transmission and reflection)
Illustration of the ‘orders’ produced by interference at different angles (as for double slit experiment)
Path difference and phase difference
Conditions for constructive interference at different angles (animated)
Close up views (animated)
Derivation of ?=d sin?? (animated)
Derivation of n?=d sin??
Effect of diffraction grating on white light
Calculation using n?=d sin??
Return to comparison of patterns produced by increasing number of slits

About the Author

R S

Teacher (retired)

I taught physics and electronics for over 30 years, mainly at A level in sixth form colleges. Quite a few years ago I wrote several physics books and contributed to others, it was so long ago I am sure they must all be out of print. In addition I have worked for the OU in the past and still do some examining work.

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